Immunoinformatics-Based Identification of B and T Cell Epitopes in RNA-Dependent RNA Polymerase of SARS-CoV-2

Introduction: The ongoing coronavirus disease 2019 (COVID-19), which emerged in December 2019, is a serious health concern throughout the world. Despite massive COVID-19 vaccination on a global scale, there is a rising need to develop more effective vaccines and drugs to curb the spread of coronavir...

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Main Authors: Shabir Ahmad Mir, Mohammed Alaidarous, Bader Alshehri, Abdul Aziz Bin Dukhyil, Saeed Banawas, Yahya Madkhali, Suliman A. Alsagaby, Ayoub Al Othaim
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Vaccines
Subjects:
Online Access:https://www.mdpi.com/2076-393X/10/10/1660
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author Shabir Ahmad Mir
Mohammed Alaidarous
Bader Alshehri
Abdul Aziz Bin Dukhyil
Saeed Banawas
Yahya Madkhali
Suliman A. Alsagaby
Ayoub Al Othaim
author_facet Shabir Ahmad Mir
Mohammed Alaidarous
Bader Alshehri
Abdul Aziz Bin Dukhyil
Saeed Banawas
Yahya Madkhali
Suliman A. Alsagaby
Ayoub Al Othaim
author_sort Shabir Ahmad Mir
collection DOAJ
description Introduction: The ongoing coronavirus disease 2019 (COVID-19), which emerged in December 2019, is a serious health concern throughout the world. Despite massive COVID-19 vaccination on a global scale, there is a rising need to develop more effective vaccines and drugs to curb the spread of coronavirus. Methodology: In this study, we screened the amino acid sequence of the RNA-dependent RNA polymerase (RdRp) of SARS-CoV-2 (the causative agent of COVID-19) for the identification of B and T cell epitopes using various immunoinformatic tools. These identified potent B and T cell epitopes with high antigenicity scores were linked together to design the multi-epitope vaccine construct. The physicochemical properties, overall quality, and stability of the designed vaccine construct were confirmed by suitable bioinformatic tools. Results: After proper in silico prediction and screening, we identified 3 B cell, 18 CTL, and 10 HTL epitopes from the RdRp protein sequence. The screened epitopes were non-toxic, non-allergenic, and highly antigenic in nature as revealed by appropriate servers. Molecular docking revealed stable interactions of the designed multi-epitope vaccine with human TLR3. Moreover, in silico immune simulations showed a substantial immunogenic response of the designed vaccine. Conclusions: These findings suggest that our designed multi-epitope vaccine possessing intrinsic T cell and B cell epitopes with high antigenicity scores could be considered for the ongoing development of peptide-based novel vaccines against COVID-19. However, further in vitro and in vivo studies need to be performed to confirm our in silico observations.
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spelling doaj.art-f5bcb4e4a46549ba8dc70cab6f1d76702023-11-24T03:03:50ZengMDPI AGVaccines2076-393X2022-10-011010166010.3390/vaccines10101660Immunoinformatics-Based Identification of B and T Cell Epitopes in RNA-Dependent RNA Polymerase of SARS-CoV-2Shabir Ahmad Mir0Mohammed Alaidarous1Bader Alshehri2Abdul Aziz Bin Dukhyil3Saeed Banawas4Yahya Madkhali5Suliman A. Alsagaby6Ayoub Al Othaim7Department of Medical Laboratory Sciences, College of Applied Medical Science, Majmaah University, Al Majmaah 11952, Saudi ArabiaDepartment of Medical Laboratory Sciences, College of Applied Medical Science, Majmaah University, Al Majmaah 11952, Saudi ArabiaDepartment of Medical Laboratory Sciences, College of Applied Medical Science, Majmaah University, Al Majmaah 11952, Saudi ArabiaDepartment of Medical Laboratory Sciences, College of Applied Medical Science, Majmaah University, Al Majmaah 11952, Saudi ArabiaDepartment of Medical Laboratory Sciences, College of Applied Medical Science, Majmaah University, Al Majmaah 11952, Saudi ArabiaDepartment of Medical Laboratory Sciences, College of Applied Medical Science, Majmaah University, Al Majmaah 11952, Saudi ArabiaDepartment of Medical Laboratory Sciences, College of Applied Medical Science, Majmaah University, Al Majmaah 11952, Saudi ArabiaDepartment of Medical Laboratory Sciences, College of Applied Medical Science, Majmaah University, Al Majmaah 11952, Saudi ArabiaIntroduction: The ongoing coronavirus disease 2019 (COVID-19), which emerged in December 2019, is a serious health concern throughout the world. Despite massive COVID-19 vaccination on a global scale, there is a rising need to develop more effective vaccines and drugs to curb the spread of coronavirus. Methodology: In this study, we screened the amino acid sequence of the RNA-dependent RNA polymerase (RdRp) of SARS-CoV-2 (the causative agent of COVID-19) for the identification of B and T cell epitopes using various immunoinformatic tools. These identified potent B and T cell epitopes with high antigenicity scores were linked together to design the multi-epitope vaccine construct. The physicochemical properties, overall quality, and stability of the designed vaccine construct were confirmed by suitable bioinformatic tools. Results: After proper in silico prediction and screening, we identified 3 B cell, 18 CTL, and 10 HTL epitopes from the RdRp protein sequence. The screened epitopes were non-toxic, non-allergenic, and highly antigenic in nature as revealed by appropriate servers. Molecular docking revealed stable interactions of the designed multi-epitope vaccine with human TLR3. Moreover, in silico immune simulations showed a substantial immunogenic response of the designed vaccine. Conclusions: These findings suggest that our designed multi-epitope vaccine possessing intrinsic T cell and B cell epitopes with high antigenicity scores could be considered for the ongoing development of peptide-based novel vaccines against COVID-19. However, further in vitro and in vivo studies need to be performed to confirm our in silico observations.https://www.mdpi.com/2076-393X/10/10/1660COVID-19epitopeimmunoinformaticspeptide vaccineRNA polymeraseSARS-CoV-2
spellingShingle Shabir Ahmad Mir
Mohammed Alaidarous
Bader Alshehri
Abdul Aziz Bin Dukhyil
Saeed Banawas
Yahya Madkhali
Suliman A. Alsagaby
Ayoub Al Othaim
Immunoinformatics-Based Identification of B and T Cell Epitopes in RNA-Dependent RNA Polymerase of SARS-CoV-2
Vaccines
COVID-19
epitope
immunoinformatics
peptide vaccine
RNA polymerase
SARS-CoV-2
title Immunoinformatics-Based Identification of B and T Cell Epitopes in RNA-Dependent RNA Polymerase of SARS-CoV-2
title_full Immunoinformatics-Based Identification of B and T Cell Epitopes in RNA-Dependent RNA Polymerase of SARS-CoV-2
title_fullStr Immunoinformatics-Based Identification of B and T Cell Epitopes in RNA-Dependent RNA Polymerase of SARS-CoV-2
title_full_unstemmed Immunoinformatics-Based Identification of B and T Cell Epitopes in RNA-Dependent RNA Polymerase of SARS-CoV-2
title_short Immunoinformatics-Based Identification of B and T Cell Epitopes in RNA-Dependent RNA Polymerase of SARS-CoV-2
title_sort immunoinformatics based identification of b and t cell epitopes in rna dependent rna polymerase of sars cov 2
topic COVID-19
epitope
immunoinformatics
peptide vaccine
RNA polymerase
SARS-CoV-2
url https://www.mdpi.com/2076-393X/10/10/1660
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